316 MEMOIRS ON THE COLEOPTERA 



ous, the small sparse slender decumbent hairs more distinct; scutellum 

 much more finely and densely punctate than in blaisdelli, with finer 

 shorter sparser and more decumbent vestiture; elytra in form nearly* 

 as in the male, rather more than two-fifths longer than wide and 

 barely more than a fourth wider than the prothorax, rugose and 

 closely, not very finely, irregularly punctate, the decumbent hairs 

 very small and slender, being much smaller than in fossiger but de- 

 cidedly less minute than in blaisdelli, scarcely at all concealing the 

 integument; pygidium but little wider than long, strongly convex, 

 with small decumbent and rather close-set hairs, producing a densely 

 pruinose effect, those of the abdomen less minute and, along the 

 sides, long, dense and decumbent, the intermixed erect hairs every- 

 where evident on the abdomen. Length 22.0 mm.; width 10.7 mm. 

 One specimen. 



California (Los Angeles Co.) pulverea Csy. 



ii Elytral vestiture more hair-like than squamiform. Body rather 

 large in size, subcylindric, dark umber-brown in color; vestiture 

 yellowish-cinereous, rather dense; head with dense coarse decumbent, 

 and finer erect, hairs, those on the clypeus longer; vertex more or 

 less tumid medially; clypeus with obtuse but subprominent angles; 

 last palpal joint parallel, nearly a third longer than the antennal 

 club, which is not quite so elongate as in the preceding forms, the 

 very deep entire excavation perfectly parallel throughout; prothorax 

 of the usual form, convex, with rounded basal angles, the punctures 

 rather coarse and well separated, becoming less coarse and gradually 

 closer basally; vestiture of long erect shaggy, and shorter, more 

 decumbent and subsquamiform, hairs, nowhere very dense; apex 

 not quite half as wide as the base; elytra a third longer than wide and 

 a fourth wider than the prothorax, parallel, rapidly very obtuse at 

 apex, the surface rather finely, subrugulosely and not densely 

 punctate, the decumbent hairs as long as the basal thickness of the 

 antennal funicle, sharply pointed and seven or eight times as long 

 as wide; pygidium transversely, obtusely triangular, with similar 

 but finer close-set decumbent vestiture as on the abdomen; first 

 tooth of the anterior tibiae larger and more obtuse than the second; 

 hind tarsi equal in length to the tibiae. Length 21.0-21.5 mm.; 

 with 10.0-10.5 mm. Two examples. 



Female cylindrical, nearly as in the male but rather more elongate, 

 with finer and less dense vestiture, cinereous-white in color; head 

 relatively smaller, with coarse close distinct punctures and a large 

 tumidity on the vertex, the decumbent pubescence rather fine and 

 sparse, the front and vertex with many long hairs in addition; last 

 palpal joint three-fifths as long as the short oval antennal club, nar- 

 rowly triangular, its narrow and gradually attenuated excavation 

 extending from near the base to apical fifth; prothorax almost exactly 

 as in the male in form, size and sculpture, though rather broader, the 

 erect vestiture similarly bristling and conspicuous, the short hairs 

 suberect, sparse and extremely fine; elytra two-fifths longer than 

 wide, barely a fourth wider than the prothorax, the sculpture similar 

 but finer and sparser, the decumbent hairs small, very slender and 



